Home / 1,478,835.45-2,219,127.98-1,078,468.65

Finding the Fourth Proportional to 1,478,835.45, 2,219,127.98 and 1,078,468.65

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Solution

The fourth proportional to 1,478,835.45, 2,219,127.98 and 1,078,468.65 is: 1,618,340.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,835.45 : 2,219,127.98 = 1,078,468.65 : x
  2. Step 2: Convert to fraction form
    1,478,835.45/2,219,127.98 = 1,078,468.65/x
  3. Step 3: Cross multiply
    1,478,835.45x = 2,219,127.98 × 1,078,468.65
  4. Step 4: Simplify right side
    1,478,835.45x = 2,393,259,951,375.48
  5. Step 5: Solve for x
    x = 2,393,259,951,375.48/1,478,835.45
  6. Step 6: Final answer
    x = 1,618,340.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.